Furnace.



Na $20,669. i

UNITED STATES PATENT i OFFICE.

mienne. oei-ober o, roos.

JOHN MACCORMACIC, 0i" BAYONNE, N illV JERSEY, ASSIGOR YIO ROYAL C.

N P'EABDY, 0i`4 BROOKLYN, NEW YORK.`

mRNA-os.'

` srscrrxcemon naming pim-0r. un@ razen: No. @meenemen oktober 6,1903.

iyin tica fied Jul S3. i993. Seria! 5u. lli'l. Xe aeeLl" tte it known that I, .Ions MAcCorumex, A citizen of tho United Sintes, residing nt. ik `vonne, in the county oflludwn und State-of NewJersey, have invented n cet-tuin new nod useful Improvement in Furnnces, of which the following: is n description.

My invention teintes to improvements in furnncen, :ind particularly to furnaces of the type employing automatic-strikers for supply- -ln'g fuel to the combustionshrine-en.

My objects genernliy nro to simplify the construction and improve the .opemtion of these devices.

My invention consists, in the tiret pince, of improvements in the construction-nud umnn'er of monntim.,r nud operntion of choking grnte-bnrs which receive fuel from the fuelnmgnzino of nn nutonintie stutterv or other source whereby lhc couetruction will be very nimplo nndctlicient und will romlily permit nny oneof the grote-hors to he removed or replaced when desired.

Further, the invention cnnsisoi'iletnils of construction und of suhcoxnlsiunt-ions of ciements'entering into the nitrite-np of the conlplcto dovice, ns will be Vmore full;A hereinafter described und cleiixued.- 9

In order that. the invention muy be better understood, attention is directed to the nccoinpnnyng drawings, forming.: part of this specification, in which- I Figure 1 is n longitudinnl sectional v iew through tho furnace in its preferred forni,

showing n port of :t water-tube boiler, the` vection being tnkcn on the lino 1 1 of Fig. 2; Fig. 2, n frontelevntion', partly Ain section; Fig. 3, a horizontal sectional view'tnken immedintely above the Webmagazine, and Fig.

-1 a longitudinal Sectional vieu' through thev .the nalnhn is .provided with n pivoted door 7, which is normally closed and which is formed of two pint-cs with n filling Shetneon them of refractory nmterinl, prefernhiy'kno -55 lin or otherxmn-couductor of heist. Thenshpit chamber is provided on its tioor with rails 9, carrying: a dumpngicnr lt), into which the contents of the nsibhiu may bo deposited by opening the door 'a'. Obviously :my other 6o form of conveyor cnn he loented lnthe nel pit. chamber, and although I prefer to nmke use of n door 7. .which can he opened to periodically discharge the contents of the nsh-hin, it will he evident that the :ish-hin b5 may be' open nt its .lower end nod may continuously dischnrge'into tho conveying do vices. A door, honorer,` isA preferable, ns when closed it prcvents'nny upd'rnft through thensh-bin und permits the ashes to settle 7e ell'eetivelytherein. Extendingncrossthotop of tho ash-pit chamber nre Lbenm 1.1, which support the wind-box llof :t stokerol nconb, mon type. Locntod in this vrind-box isn foei magazine t3, provided with txvyers lt nt its 75 upper sido edges. Lending; into-the splice between the fuelonnguzine und the winddmx is n wind-pipo l5, which extends from a. line 16, Supplied withnatuml or forced draft. Ohviousiy by employing a tino arranged as 8o shown .nir may be supplied to n. html: of furonces ari-urged sido byeide. V-Loczitod in the [uol-magazine 13, :is in eonunon with Stoker-s of the kind iiinstmted, is n shaft 17, cnrryingv n conveyor-screw '1S nud driven by n. 85 small motor 19. Fuel'is supplied to the conveyenscrcw 18 :through n. hopper 0 nud by the conveyor-screw is forced into the fuelmngazino'nn'd canned to pile up over the side edges of the same. Mounted on the Lbemus 9o 1t nt'. each sido of the wind-box nro skeleton brackets :21, provided with'recessed seats 22 in their upper inclined faces. testing on these Seats nro the vert-ical members of rightangular grntebnrs 2 3, the horizontal mem 95 15ers of which overlap the next adjacent: bars. Each of these grate-hairs is, provided with :i downwardly-extcodng arm 24, and :ill of said arms are connected together by n, link 25, connected to a. rod 26, thelatter being zoo formed `centrally with an extended eye 27, as shown. Although in-Fig. 2 {.illustrate only ots 35.

ono ot' these of grato-bars at one sido of the windlwxjt will be understood that a corresnonding is formed at the other side of tho wind box, arranged ns. explained, and

.that tho corresponding rod 36 thereof conallait 29 will be also rotated, and hy the opv eration of the eam 2S- the rods .26 will be reoiprocnted back and forth tobhake the rightangular grate-bara 23. At the side of each Seto( inclined shaking grate-balsamoinounted dumpingen-:des 33, arranged in three 5015,41# shown. lirici: of these dnmpingfgratesis provided with trunnions 34, by which it is mount,- nd, so nato lie-dumped in anpportngyhraek` Each dumping-grato is provided with a downwardly-extended arm 3G, from which extends a rod 3i", passing through nn opening 25S in the front wall ofthe furnace 2mdprorided outside o( the front-wall with n lover 39, which may he engaged by a suitable tool in order to dump any oneof said dumping-gratos. The front, ivall of the furnaceis provided with an oponingelosed byaduorl,

above each of the inclined 'grate-surfaces, in' order that the interior of the furnace may be reached for any purpose, and is also provided with an opening closed by adoor 4l, in lino with each lsety ofdn\npinggrato,to permit the spat-o beneath the latter to he also reaehed when necessary.

In operation power is applied by the motor 19 to rotate the conveyor-screw, which' also rotates the shaft Z9 and hy means of the cani 2S oscilates the shakinggrates. nel-is sup-- gratos causes the material to progressively pass over the san-ie' toward the dumpinggrat-es 33 and-'in transit the fuel will be com burned. Air is supplied through the twyers 14 from the wind-box 1:3 and also t-o the space beneath the shaking-grams, so that; vair-eat! v enter the burning fuel til-rough the spaces between ille right-angular grate-bars. Then desired, any ash or clnker accnnmlatedon the dumpuggrates 83 can be removed by dumping said grat-es to-tlxereby deposit the ash and other refuse into the ash-bin, from which it can be removed as explained.

Having non' described my invention, what Ielasn as neit therein, and desire' to secure by Letters Patent, sas follows:

In a furnace, tho Combination with an au tomntic stolzer having a fnelmmgazino and an air-chamber partially surrounding said mmrazine. of a triangular bracket secured to the side of said air-chamber, an inclined bank of rectangular grate-harsen each side of that fuel-magazine, each bank of grate-barometing pvomlly and loosely with their vertical members in sockeLson one sido ofsad bracket, an :.rtn oneach`-gratebar, connections b6- tween said arms and a ontaY for simultaneously rocking Lhegmm-bars-of each set, substantially as set forth.

This specification signed and witnessed this 25th day ol' May, 19,02. Y

` JOHN MACCORMACK.

V'itnesaes:

FaAzcK L. Dyna,

J'No. Ron?. TAYLoR. 

